CN1045634A - Be equipped with flexible pipe peristaltic pump cartridge and by the peristaltic pump of its assembling - Google Patents

Be equipped with flexible pipe peristaltic pump cartridge and by the peristaltic pump of its assembling Download PDF

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Publication number
CN1045634A
CN1045634A CN90101318A CN90101318A CN1045634A CN 1045634 A CN1045634 A CN 1045634A CN 90101318 A CN90101318 A CN 90101318A CN 90101318 A CN90101318 A CN 90101318A CN 1045634 A CN1045634 A CN 1045634A
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CN
China
Prior art keywords
helical gear
cartridge
flexible pipe
shell
motor
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Granted
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CN90101318A
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Chinese (zh)
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CN1019843B (en
Inventor
马勒比克·爱德华
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Publication of CN1045634A publication Critical patent/CN1045634A/en
Publication of CN1019843B publication Critical patent/CN1019843B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action

Abstract

Cartridge comprises a shell, in inboard, two ends one columniform seat ring is arranged respectively near it, helical gear can face toward seat ring effect and rotation, this helical gear can flatten the flexible pipe that is arranged between two seat rings, helical gear be tubulose and be cased movably, be positioned at the recess that flexible pipe constitutes, described shell comprises at least the center hole that is provided with at the one end, the diameter in this hole greatly to can directly be equipped with engageable in the tubulose helical gear planetary dish or by the helical gear that spool drives that meshes between tubular gear.
Device of the present invention is simple, durable, efficient is high.

Description

Be equipped with flexible pipe peristaltic pump cartridge and by the peristaltic pump of its assembling
The present invention relates to be equipped with flexible pipe peristaltic pump cartridge and by the peristaltic pump of its assembling.This cartridge comprises a shell, in the both ends of the surface inboard near it one columniform seat ring is arranged respectively, has a plurality of helical gears can face toward seat ring effect and rotation, and these helical gears can flatten the flexible pipe that is arranged between two seat rings.
European patent EP-0041267 discloses a kind of such cartridge.Disclosed cartridge is quite complicated, and its use is restricted.
The object of the present invention is to provide a kind of cartridge of the above-mentioned type, but have simple and durable structure, effectively the application of pumping fluid and this pump of expansion.
According to the present invention, a kind of cartridge of the peristaltic pump that flexible pipe is housed of the above-mentioned type is provided, it is characterized in that described helical gear be tubulose and be cased movably, be positioned at the recess that flexible pipe constitutes, described shell comprises at least the center hole that is provided with at the one end, the diameter in this hole greatly to comparable directly by be equipped with engageable to the tubulose helical gear in planetary rotating disk or by the helical gear that spool drives that meshes in the tubulose helical gear.
Like this, described cartridge can directly be driven by a disk, and this method can accurately be known disk and position, helical gear angle at any one time.Cartridge also can directly drive with high-revolving central shaft.These helical gears are simple in structure and cheap, and they are installed in movably, and the operation to pump is favourable in the cartridge.
When motor is pulled down cartridge, helical gear is got back to the center under the flexible pipe static pressure, and flexible pipe stays open, and makes thorough disinfection easily.
Preferably be provided with the inside groove of a concave cross section in the described shell, the flexible pipe seat therein, and described helical gear has a barrel-shaped part, the concave curvatures of the groove in its convex surface and the shell matches, facing to flexible pipe, each helical gear also is included in the cylindrical part of its both sides, and they can roll in corresponding seat ring, and the concave structure in the shell guarantees the helical gear automatic centering of flexible pipe.
Described shell preferably has a columniform center crown wheel, flange is being fixed by ratchet in both sides at this gear, each flange comprises an inner race, the flange that is positioned at drive motor one side comprises that one is substantially the ring gear of frustoconical, work in coordination between the tooth that is provided with on the full periphery by this ring gear and the band tooth crown wheel that links to each other with motor housing, can guarantee that shell is fixed on the motor housing.
Described tubulose helical gear is generally made by resilient plastics.
The invention still further relates to the peristaltic pump that above-mentioned cartridge is housed, this pump comprises that one can drive the helical gear motor of tubulose.
This pump motor is preferably in its output shaft one disk is set, coiled upper support a plurality of, loose ground is being adorned the roller that can engage in the tubulose helical gear on axle, described disk comprises that also one is positioned at the axle of the extension of motor shaft, loose ground is being adorned a centre roller on this axle, between this and the roller bigger automatic centering gap is arranged, can match with helical gear outer surface.
The shell of described cartridge is generally lived with an edge cap seal in a side of leaving motor, and a helical gear seat ring is arranged on the inner side surface of this lid.
In one embodiment, the disk of pump has roller and centre roller roller of four regular distribution, and cartridge has four helical gears.
Remove outside the said structure, the present invention also comprises some other structures, explains specific embodiment below with reference to accompanying drawings in detail, but these usefulness as an illustration just, rather than as the scope of restriction.
Fig. 1 is the perspective view of peristaltic pump of the present invention, and cartridge is separated with disk among the figure.
Fig. 2 is a view along the disk shown in II among Fig. 5-II line direction.
Fig. 3 is a view along the cartridge shown in III among Fig. 4-III line direction;
Fig. 4 is the sectional drawing along the cartridge of IV among Fig. 3-IV line;
Fig. 5 is the left view of extracted out the part of disk shown in Figure 2;
Fig. 6 is the longitudinal section of pump of the present invention, and part shows exterior part, and disk has been installed in the inside of cartridge in the longitudinal section.
Fig. 7 is another embodiment's of a pump of the present invention sectional view, and cartridge illustrates to analyse and observe;
Fig. 8 is as the band tooth crown wheel of the cartridge support view along VIII among Fig. 7-VIII line direction;
Fig. 9 is the sectional drawing of another embodiment's cartridge.
Referring to accompanying drawing, peristaltic pump 1 comprises the flexible pipe that is made of plastics 2 that constitutes the pump housing.This pipe is contained between cylinder blanket 3 and the interior roller 4, and roller 4 can match with a center transmission component 5 in these, and the latter is driven by motor 6.
This pump 1 comprises a removable cartridge 7, and this cartridge 7 is included in the cylinder blanket 8 that described pipe 2 is being adorned in inside, and tubulose helical gear 9, and four helical gears are arranged in described embodiment.
Roller 4 in these helical gears 9 form, the most handy plastic material of these gears is made.The pipe that some plastic materials are crushed to also can form helical gear 9.
Described pipe 2 is included in the semi-circular portion in the shell 8 substantially, also has the parallel pin one 1 that passes shell 8 by hole 10.
As Fig. 1, shown in 3 and 4, after removing cartridge, these helical gears 9 are free in shell and manage 2 and be actually pressurized not.
Be prepared for comprising a center hole 13 facing to the pump case face 12 of motor 6 contacts, the diameter in hole is large enough to drive helical gear 9, and this will illustrate below.And the diameter of pump case face 12 is bigger than the diameter of shell 8, and forms radially the flange from pump case 8 upper process, wherein, be provided with two radially relative lockholes 14 on the flange, can be fixed to cartridge 7 on the motor 6, be provided with claw 15 on the motor, the head that can match with lockhole 14 is arranged on the claw.
The shell 8 of cartridge is included in axially, near its cylindrical raceway 16 of inboard, two ends, 17(sees Fig. 4), tubular helical gear 9 can face toward this seat ring 16,17 effects and rotation, flexible pipe 2 is arranged between described two seat rings, facing to the diameter cylindrical form interior surface 18 bigger than the diameter of seat ring 16,17.
At the other end of the drive motor that faces toward pump, shell 8 usefulness one edge covers 19 to be sealed, and is provided with seat ring 17 on lid 19, and this seat ring has formed the internal surface of the center ring of the lid 19 in shell 8.The internal surface of this lid 19 comprises a central channel 20.
Helical gear 9 covers 19 internal surface and inside the shell along (Fig. 4) between the shoulder 21 in hole 13 axially remaining on.
Axial spacing between the shoulder 21 in lid 19 internal surface and hole 13 is only slightly long than the axial length h of helical gear 19 from l, to guarantee these helical gear positions of fine maintenance and to avoid.And the difference of l and h preferably is less than or equal to 0.2mm.
The pine loose ground is contained in roller 22 on the axle 23 that is supported by disk 24 and can passes hole 13 and be engaged in the helical gear 9, and roller 22 distributes equably around the axis of disk 24.Roller 22 quantity equal the quantity of helical gear 9, equal 4 in the present embodiment.
Each roller 22 has a frustoconical at that end 25 that leaves disk 24, so that roller can inject in the corresponding helical gear 9 more conveniently.One end of axle 23 is provided with spindle nose 26, can axially maintain roller 22.
The diameter d of roller 22 is than the internal diameter f of helical gear 9 smaller (Fig. 4), and gap f-d preferably drops in the 0.3mm scope.
Centre roller 27 is contained on the axle 28 free to rotately, and when disk 24 was fixed on the motor shaft, axle 28 was contained on the prolonged section of motor shaft 6.
Centre roller 27 also comprises a frustoconical end (Fig. 6) of going in the groove 20, and this head of 28 is fully seated in the center hole that is arranged on roller 27 terminations.
As shown in Figure 5, the length of roller 27 is slightly longer than the length of roller 22.Like this, when assembly inserted in the hole 13 of cartridge 7, the head of roller 27 at first penetrated the space 29(Fig. 3 between helical gear 9), helical gear is separated, roller 22 can easily be engaged in the described helical gear.
Roller 27 bigger radially automatic centering gap 0.5mm are contained on its axle 28, and this gap is the difference between roller 27 diameter of bores and axle 28 the external diameter just.
Because bigger automatic centering gap is arranged, roller 27 can provide dynamic balancing to the pressure of each side.
Can for example use radially lock screw 30(Fig. 1 with installing arbitrarily) disk 24 is fixed on the output shaft of motor.
When pulling down cartridge 7 from motor 6 and roller 22 and 27 and deposit, helical gear 9 is got back to the center (see figure 3) under pipe 2 static pressures, and this pipe 2 stays open state is stabilized in relative support up to helical gear tangential position.So just avoided when depositing, clinging between the tube wall, deposited this phenomenon of clinging of Guan Shihui generation with collapsed state.
Pipe 2 can be remained in position by the stop ring of two welding, can be sandwiched in the accurate groove forming under the pressure of whole support ring with the lid of cartridge.
When making in batch, pipe 2 can promptly be packed in the plug-in mounting pipe.
The operation of pump will illustrate below.
After being placed on cartridge 7 on the disk 5, roller 22 is packed in the tubular helical gear 9, and these gears are against centre roller 27.Rotate cartridge 7 a little, make claw 15 engage into lockhole 14 than in the major diameter part, move to the narrower part of lockhole 14 again, the head of claw 15 can not skid off from this narrower part, cartridge is installed on the framework of motor like this.
Live roll 22 is packed into smaller gap in the tubular helical gear 9, and exerts pressure in the outside of 27 pairs of helical gears 9 of intermediate support roller, and helical gear 9 just is open until pump housing pipe 2 is fixed.These installation step can in seconds be finished with a hand.
When motor 6 begins to rotate, disk 5 and helical gear are driven, pump is just started working.
22 on the roller that is driven by disk 5 directly matches with pump housing pipe 2, can avoid making pump housing pipe to stretch towards sprocket hole like this, also avoids making the suction bore closure.So just obtain delivery profile by the pump of the comparison rule of rotation speed change.Centre roller 27 just provides and has supported and to the dynamic balancing of all operations pressure freely.
By suitably selecting the wall thickness of helical gear 9, can influence the outlet pressure of the fluid of institute's pumping.
Referring to Fig. 7 and 8, there is shown another embodiment of cartridge of the present invention and pump.Have element with former figure to have one or the element of similar effect among Fig. 7 and 8, then the label with respective element adds 100 labels as this element, and no longer describes in detail.
The shell 108 of cartridge 107 comprises a columniform center crown wheel 31, passes through ratchet holding flange 32 and 33 in the both sides of this gear, and each flange 32 and 33 comprises a seat ring 116 and 117.Flange 33 forms and covers 119, and lid 119 is axially compensating mutually with the ring gear that is used for being contained on the crown wheel 31 by ratchet.
Be contained in the flange 32 that is positioned at drive motor 106 1 sides and comprise the ring gear 34 of frustoconical substantially, the diameter of this ring gear increases toward the direction of motor 106.Work in coordination between the tooth 35 that is provided with on the full periphery by described ring gear 34 and the toothed crown wheel 36 that links to each other with the shell of motor 106, can be fixed on shell and cartridge 107 on the drive motor 106.
Tooth 35, as shown in Figure 7, and evenly distributes along whole circumference to outstanding with respect to the middle face diameter of crown wheel, as shown in Figure 8, between the two adjacent teeth across gap 37.Each tooth 35 is radially having certain elasticity, by making it can overlap ring gear 34 large diameter terminations in the bending of tooth root place and block the frustoconical surface of this ring gear, the regional front that can be positioned at the crown wheel 36 of tooth 35 by the ramp effect that ramp surface produced of tooth 35 and ring gear 34 in the footpath is applied with axial force to flange 32.
Crown wheel 36 forms the especially simply and easily bearing of cartridge, and an available hand is laid cartridge, and not with respect to motor housing 106 in advance to cartridge 107 orientations.
In the embodiment shown in fig. 7, transmission component 105 is engaged on an axle between the tubular helical gear 104 in being.
Fig. 9 shows an alternative embodiment of the invention, or the similar elements identical with Fig. 1 to 6 shown in the figure adds that with the label of respective element 200 represent this element.
Shell 208 has the groove 37 that cross section is a concave, can flexible pipe 202 be housed to the axis orientation of shell in this groove.The outside of helical gear 209 has the drum 38 of convex surface, and this convex surface 38 matches with the concave surface 37 of the groove of shell.
Respectively there are a cylindrical part 38 and 39 in the both sides of the cylindrical portion 38 of helical gear 209, can roll in the seat ring 216 and 217 that matches respectively.Helical gear 204 can have cylindrical inner casing with match with the similar planetary pinion of Fig. 1 middle gear.
Fig. 9 middle shell 208 has the internal structure of spill, can make pipe and helical gear 209 automatic centerings, therefore in fact no longer need shoulder axially to keep helical gear in helical gear both sides, this makes helical gear wearing and tearing reduce, and makes the life-span of cartridge longer.In addition, also reduced heating.And the sealing effect that just causes at junction point flattening pipe 202 between concave surface 37 and helical gear nonreentrant surface 38 is better.For same transfer rate, can make the discharge pressure of pump higher, and save energy.
Cartridge of the present invention and pump have lot of advantages. The energy automatic centering does not have radial pressure between pump and motor, can protect the bearing block of motor. The auto-compensation in practicable gap can be cancelled roller in axial location.
Noiselessness during pump work easily assembles when making in batch. Low-cost and easily assembling allow to use can be for convenience detach cartridge, as be used in medical on.
Pump housing abrasion resistance is good, and the plastic part that the mold pressing of not processing is in addition made guarantees its manufacturing tolerance easily.
Circulation port around the pipe of the opening by static cartridge can be sterilized with oxirane.
But only a small amount of part is moving parts, has reduced friction, and good dynamic balance provides good machinery output, and can use not too expensive reliable low-power motor. Fine in the gravity-flow ventilation of when operation, avoid undue heating.
Because accurate size is arranged, make the more standardization of plug-in mounting Guan Zhongneng of automatically packing into of pump housing pipe, thereby the transfer rate of pump is also more accurate.
The driving disk that is installed on the power transmission shaft can exchange easily, and element is made of plastics, thereby cost is low.
As has been noted such, by can making helical gear 9 to the extruded tube section of being slit into low cost, and avoid with more expensive mfg. moulding die.
Pump of the present invention and stepper motor or gear drive servomotor have good compatibility.
Can make easily rotational parts such as: polyimides, carbon fiber etc. with high-resistance material uses to be used for advanced technology.
Can carry out quality control to cartridge easily in the termination of production line, accurately calibrate the flow rate of cartridge.
It should be noted that pipe 2 is closed by flattening at 2 places at least for four helical gear cartridge are arranged.

Claims (8)

1, the cartridge of the peristaltic pump of flexible pipe is housed, comprise a shell, one columniform seat ring is respectively arranged near its two ends, there are a plurality of helical gears can face toward seat ring effect and rotation, these helical gears can flatten the flexible pipe that is arranged between two seat rings, it is characterized in that described helical gear (9,109,209) be tubulose and be to be contained in shell (8 movably, 108,208) in, be positioned at the recess that flexible pipe constitutes, described shell comprises the center hole (13,113 that is provided with at the one end at least, 213), the diameter in this hole greatly to can be directly by the rotating disk (5) that engageable planetary pinion (22) in the tubulose helical gear is housed or by the helical gear that spool drives that meshes in the tubulose helical gear.
2, according to the cartridge of claim 1, it is characterized in that helical gear (9,109,209) is got back to the center under flexible pipe (2,102,202) static pressure when when motor is pulled down cartridge, flexible pipe stays open, and makes thorough disinfection easily.
3, cartridge according to claim 1 or 2, it is characterized in that being provided with in the described shell (208) inside groove (37) of a concave cross section, flexible pipe (202) seat therein, and described helical gear (209) has a barrel-shaped part (38), the concave curvatures of the groove (37) in its convex surface and the shell matches, facing to flexible pipe, each helical gear (209), also be included in the cylindrical part (39 of its both sides, 40), they can roll in corresponding seat ring (216,217), and the concave structure (37) in the shell guarantees flexible pipe and helical gear automatic centering.
4, according to each claim in the claim 1～3, it is characterized in that described shell (108) has a columniform center crown wheel (31), flange (32 is being fixed by ratchet in both sides at this gear, 33), each flange comprises an inner race (116,117), the flange (32) that is positioned at drive motor (106) one sides comprises that one is substantially the ring gear (34) of frustoconical, work in coordination between the tooth that is provided with on the full periphery by this ring gear (34) and the band tooth crown wheel (36) that links to each other with motor housing, can guarantee that shell (108) is fixed on the motor housing.
5,, it is characterized in that described tubulose helical gear (9,109,209) made by resilient plastics according to each cartridge in the claim 1～4.
6, the peristaltic pump of each cartridge in the claim 1～5 is housed, it is characterized in that comprising a motor, the output shaft of this motor is provided with disk (24), coiled upper support a plurality of (23), go up loose ground at axle (23) and adorning the roller (22) that can engage in the tubulose helical gear, described disk comprises that also one is positioned at the axle (28) of the extension of motor shaft, goes up loose ground at this axle (28) and is adorning a centre roller (27), between this and the roller bigger automatic centering gap is arranged.
7, according to the pump of claim 6, it is characterized in that the shell of described cartridge is sealed with an edge lid (19) in a side of leaving motor, a seat ring of helical gear (9) is arranged on the inner side surface of this lid (19).
8,, it is characterized in that adorning on the described disk (24) 4 rollers (22) and a centre roller (27) according to the pump of claim 6 or 7.
CN90101318A 1989-03-13 1990-03-13 The cartridge of the peristaltic pump of flexible pipe is housed Expired CN1019843B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8903234 1989-03-13
FR8903234A FR2644212B1 (en) 1989-03-13 1989-03-13 CASSETTE FOR PERISTALTIC PUMP WITH DEFORMABLE TUBE, AND PERISTALTIC PUMP EQUIPPED WITH SUCH A CASSETTE

Publications (2)

Publication Number Publication Date
CN1045634A true CN1045634A (en) 1990-09-26
CN1019843B CN1019843B (en) 1992-12-30

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Application Number Title Priority Date Filing Date
CN90101318A Expired CN1019843B (en) 1989-03-13 1990-03-13 The cartridge of the peristaltic pump of flexible pipe is housed

Country Status (21)

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US (1) US5044902A (en)
EP (1) EP0388269B1 (en)
JP (1) JPH07122434B2 (en)
KR (1) KR0148344B1 (en)
CN (1) CN1019843B (en)
AT (1) ATE100903T1 (en)
AU (1) AU627282B2 (en)
BR (1) BR9005772A (en)
CA (1) CA2011988C (en)
DD (1) DD294065A5 (en)
DE (1) DE69006239T2 (en)
DK (1) DK0388269T3 (en)
ES (1) ES2048451T3 (en)
FR (1) FR2644212B1 (en)
IE (1) IE64115B1 (en)
IL (1) IL93713A (en)
NZ (1) NZ232882A (en)
PT (1) PT93423B (en)
RU (1) RU1836587C (en)
WO (1) WO1990010792A1 (en)
ZA (1) ZA901920B (en)

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ES2048451T3 (en) 1994-03-16
JPH0331593A (en) 1991-02-12
DE69006239T2 (en) 1994-07-14
CN1019843B (en) 1992-12-30
DD294065A5 (en) 1991-09-19
AU627282B2 (en) 1992-08-20
IE900874L (en) 1990-09-13
NZ232882A (en) 1992-11-25
BR9005772A (en) 1991-08-06
EP0388269A1 (en) 1990-09-19
CA2011988C (en) 1999-07-06
FR2644212B1 (en) 1991-11-15
PT93423A (en) 1991-10-31
ZA901920B (en) 1990-12-28
DK0388269T3 (en) 1994-02-28
IE64115B1 (en) 1995-07-12
CA2011988A1 (en) 1990-09-13
EP0388269B1 (en) 1994-01-26
JPH07122434B2 (en) 1995-12-25
AU5120690A (en) 1990-09-13
KR0148344B1 (en) 1999-03-20
WO1990010792A1 (en) 1990-09-20
ATE100903T1 (en) 1994-02-15
KR920700351A (en) 1992-02-19
FR2644212A1 (en) 1990-09-14
US5044902A (en) 1991-09-03
DE69006239D1 (en) 1994-03-10
IL93713A0 (en) 1990-12-23
PT93423B (en) 1996-05-31
RU1836587C (en) 1993-08-23
IL93713A (en) 1993-08-18

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